#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <netinet/in.h>
#include <resolv.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>

int main(int argv, char** argc){

	int host_port= 1101;
	char* host_name="127.0.0.1";

	struct sockaddr_in my_addr;

	char buffer[1024];
	int bytecount;
	int buffer_len=0;

	int hsock;
	int * p_int;
	int err;

	hsock = socket(AF_INET, SOCK_STREAM, 0);
	if(hsock == -1){
		printf("Error initializing socket %d\n",errno);
		goto FINISH;
	}
	
	p_int = (int*)malloc(sizeof(int));
	*p_int = 1;
		
	if( (setsockopt(hsock, SOL_SOCKET, SO_REUSEADDR, (char*)p_int, sizeof(int)) == -1 )||
		(setsockopt(hsock, SOL_SOCKET, SO_KEEPALIVE, (char*)p_int, sizeof(int)) == -1 ) ){
		printf("Error setting options %d\n",errno);
		free(p_int);
		goto FINISH;
	}
	free(p_int);

	my_addr.sin_family = AF_INET ;
	my_addr.sin_port = htons(host_port);
	
	memset(&(my_addr.sin_zero), 0, 8);
	my_addr.sin_addr.s_addr = inet_addr(host_name);

	if( connect( hsock, (struct sockaddr*)&my_addr, sizeof(my_addr)) == -1 ){
		if((err = errno) != EINPROGRESS){
			fprintf(stderr, "Error connecting socket %d\n", errno);
			goto FINISH;
		}
	}

	//Now lets do the client related stuff

	buffer_len = 1024;

	memset(buffer, '\0', buffer_len);

	printf("Enter some text to send to the server (press enter)\n");
	fgets(buffer, 1024, stdin);
	buffer[strlen(buffer)-1]='\0';
	
	if( (bytecount=send(hsock, buffer, strlen(buffer),0))== -1){
		fprintf(stderr, "Error sending data %d\n", errno);
		goto FINISH;
	}
	printf("Sent bytes %d\n", bytecount);

	if((bytecount = recv(hsock, buffer, buffer_len, 0))== -1){
		fprintf(stderr, "Error receiving data %d\n", errno);
		goto FINISH;
	}
	printf("Recieved bytes %d\nReceived string \"%s\"\n", bytecount, buffer);

	close(hsock);
	
FINISH:
;
}
